JPH0795964B2 - Cosmetic applicator and manufacturing method thereof - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cosmetic applicator, particularly an applicator for makeup cosmetics, and a method for producing the same.

[Conventional technology]

Conventionally, a flexible foam made of polyurethane or NBR foam has been widely used as a material for applicators for makeup cosmetics.

In recent years, cosmetics have been developed, and more and more of them have been fitted to the skin so that they do not lose their makeup even if they sweat or get wet with water such as swimming. Due to such improved adhesiveness of the cosmetics, the stains on the makeup applicator become noticeable, and the stains strongly adhere to the skeleton surface of the foam to remove the stains by rubbing and washing the applicator. Has become difficult.

[Problems to be Solved by the Invention]

In this way, with the progress of cosmetics, the applicator has become significantly soiled, and therefore, a makeup that has antifouling properties that can prevent the adhesion of stains and that has a cleaning property or a decontamination property that allows the stains to be easily removed during washing. An applicator for use is desired.

Conventionally, in order to prevent adhesion of dirt, a cosmetic applicator in which the surface of a foam skeleton is subjected to antifouling treatment has been developed.

However, as mentioned above, recent cosmetics strongly adhere to the surface of the foam skeleton of the applicator, and depending on the type of cosmetic, part of the cosmetic penetrates into the foam skeleton of the applicator. However, sufficient antifouling properties cannot be obtained by the antifouling treatment of the surface of the foamed skeleton of the prior art.

In addition to the above, the cosmetic applicator has functions such as water absorbency, water repellency, and oil repellency in relation to the cosmetics, and may have flexibility, smoothness, and the like depending on the feel of the cosmetics during application. Depending on the function, the life of the applicator, etc., mold resistance, sterilization,
Functions such as anti-aging property and ultraviolet absorption are required.

There are the following two methods for imparting these functionalities to a cosmetic applicator.

The first method is to form a foam and then treat the foam with a functional treating agent having each function to adhere the functional treating agent to the surface of the foam skeleton.

The second method is to mix a functional treatment agent into the foam raw material,
It forms a foam.

However, the cosmetic applicator manufactured by the first method is not durable because the functional treatment agent is only attached to the skeleton surface, and the functional treatment agent can be removed during repeated washing of the applicator. The function will disappear in a short period of time.

In addition, the second method of incorporating the functional treating agent into the foam raw material is that the presence of the functional treating agent tends to adversely affect the stability of foaming during foam formation. Can not. Therefore, the desired function of the applicator product cannot be sufficiently obtained. When a large amount of the functional treatment agent is mixed in the foaming raw material to enhance the function, the foaming stability becomes poor and it becomes difficult to produce a desired foamed body.

Further, when the cosmetic material is continuously used while being attached to the coated surface of the cosmetic applicator, there is a problem that the functional material on the surface is covered with the cosmetic material and the performance of the functional material is difficult to exert.

[Object of the Invention]

An object of the present invention is to solve the above problems and improve the functionality of a cosmetic applicator. For example, antifouling property,
Self-cleaning property (applicator itself has cleaning ability), decontamination (no cleaning ability like detergent, but easy to remove dirt adhering to applicator), permeability, flexibility, smoothness Functions such as water resistance, water absorption, water retention, oil absorption, water repellency, oil repellency, bactericidal property, antifungal property, deterioration prevention property, light resistance, deodorant property, etc.
An object of the present invention is to provide a cosmetic applicator that has one or more and has the function of continuing for a long period of time.

Moreover, it aims at providing the method which can manufacture easily the cosmetic applicator which has such a function.

[Means for Solving the Problems] According to the present invention, a powder coating containing a functional treatment agent is adhered to the surface of the skeleton of the foam or is inside the skeleton of the foam. The above-mentioned object was achieved by the tool.

As the powder or granule, a porous powder or granule, a microcapsule, or a microcapsule of a porous powder or granule containing a functional treatment agent may be used.

Further, according to the present invention, the clathrate compound in which the functional treating agent is clathrated with cyclodextrin is attached to the skeleton surface of the foam or is contained in the skeleton of the foam by a cosmetic applicator. The above objective was achieved.

According to the present invention, with respect to the method for producing a foam, the porous powder and granules are impregnated with a functional treating agent, and the porous powder and granules encapsulating the functional treating agent are combined with a binder to form a skeleton surface of the foam. Or by mixing the porous powder or granules containing the functional treatment agent in the foam raw material, and subjecting this mixture to a foaming treatment to form a foam.

Alternatively, a functional treatment agent is microencapsulated and the microcapsule is coated on the skeleton surface of the foam together with a binder, or after the microcapsule is mixed with a foam raw material, the mixture is foamed to foam. It forms the body.

Further, instead of the granular material containing the functional treating agent, the functional treating agent may be clathrated with cyclodextrin and this clathrate compound may be used.

According to the present invention, in each of the above-mentioned methods, in the case where the foam has two or more functionalities, the treating agents having different functions are encapsulated in separate powders, respectively, and these different functional treating agents are used. You may mix and use the granular material which encloses. Alternatively, the treating agents having different functions may be premixed and then used by encapsulating the treating agents in a granular material.

[Action]

According to the present invention, since the powder or granules containing the functional treatment agent is attached to the surface of the skeleton of the foam or is inside the skeleton of the foam, the functionality contained in the powder or granules is high. The treating agent is gradually released (for example, it gradually exudes from inside like an oiles bearing), and its function is exerted for a long period of time.

For example, in order to impart antifouling property and self-cleaning property to a foam, a surfactant having a strong detergency is used as a functional treating agent, and this is encapsulated in a porous powder or microcapsule to form a foam. It may be attached to the skeleton or mixed in the foam. When such a foam is rubbed and washed, the surfactant oozes out from the inside of the foam and acts to remove stains on the foam, making it easy to wash off cosmetics and stains attached to the foam. it can.

In addition, since the functional treatment agent is included in the powder or granules, even if the cosmetic applicator is repeatedly kneaded and washed, even if the powder or granules adhered to the surface of the foam skeleton are The functional treatment agent contained is not washed off. Therefore, the functionality of the foam is durable.

Since the functional treating agent is encapsulated in the porous powder or microcapsules, the functional treating agent does not directly affect the production of the foam or the processing of the foam. Therefore, it is possible to use a functional treating agent which has been difficult to be directly attached to the skeleton surface of the foam or mixed in the foaming raw material by the conventional technique.

In addition, according to the present invention, various functional treatment agents, which have been difficult to mix with each other in the past, can be mixed without directly affecting each other by encapsulating them in a porous powder or microcapsule. You can Therefore, 2
One or more desired functionality can be imparted to the foam.

Furthermore, when the clathrate compound in which the functional treating agent is clathrated with cyclodextrin is also used, the same action as described above is exhibited.

〔Example〕

 Hereinafter, the present invention will be described in detail.

As the applicator body in the present invention, a foam that has been conventionally used in a cosmetic applicator, for example, polyurethane,
Synthetic resin foam such as polyethylene and polypropylene, NB
Rubber foams such as R (acrylonitrile butadiene rubber), SBR (styrene butadiene rubber), NR (natural rubber) and silicone rubber can be used.

The various functional treatment agents used in the present invention are as follows.

As the detergent or penetrant, a nonionic activator or anion activator having good detergency and permeability is used.

As the antifouling agent, those having hydrophilicity and the property of easily falling off with water, for example, water-soluble polyurethane, CMC (Na salt of carboxymethylcellulose), methylcellulose, chitosan, chitosan derivative, chitin and the like are used.

As the antifouling agent, polyester antifouling agents, fluorine antifouling agents, and alkyl phosphate antifouling agents are used.

As the softening agent, a cationic softening agent or a nonionic softening agent can be used.

Amino-modified silicone is effective as a leveling agent.

As the water absorbing agent, Nicepol PR-86 (product of Nichika Chemical Co., Ltd.), Relotex A-25 (product of BASF),
Lanogen TNT (Product of Takamatsu Oil & Fat Co., Ltd.), Wet Silicone (Product of Nikka Chemical Co., Ltd.), Permalose T
(ICI product) or the like may be used.

As the water retention agent, CMC, sodium alginate, a starch-acrylic superabsorbent, 1,3-butylene glycol, propylene glycol, sorbitol and the like can be used.

As the oil absorbing agent, it is effective to use polyethylene porous powder or granules, norbornene powder or Orben P.

As the water repellent, a silicone water repellent, an alkyl methylol amide, an alkyl ethylene urea water repellent, paraffin or the like may be used.

As the oil repellent, a fluorine-based polymer copolymer can be used.

As the antifungal agent, parabens, zinc pyrithione, paraoxybenzoic acid ester and the like are used.

As the bactericide, benzalkonium chloride, chlorhexidine gluconate, cationic bactericide and the like are used.

As the deodorant, Smellal (product of Environmental Science Development Co., Ltd.), FS (product of Shiraimatsu Shinyaku Co., Ltd.) and the like are used.

Radical chain inhibitor, antioxidant,
A heat deterioration inhibitor, a metal damage inhibitor, etc. may be used.

An ultraviolet absorber may be used as the light resistance agent.

Moreover, a porous powder or a microcapsule is used as the powder in the present invention.

The porous granular material may have fine pores throughout the granular material, or may be a hollow porous granular material. The following may be used as the porous powder or granular material.

As inorganic fine porous particles, alkaline earth metal carbonates (eg, calcium carbonate, barium carbonate, cobalt carbonate, basic copper carbonate, etc.), alkaline earth metal silicates (eg, calcium silicate, magnesium silicate, silicic acid) Aluminum, etc.), metal oxides (eg, silicic acid anhydride, iron oxide, alumina, cobalt oxide, copper oxide, etc.), diatomaceous earth, ceramics, and the like.

As the organic fine porous powder, chitosan balls, sponge powder, polyethylene porous powder, polypropylene porous powder, polystyrene porous powder methylmethacrylate porous powder, other polyester, polyamide,
There are porous particles such as polyvinyl chloride.

The fine porous granular material may have a size of about 0.5 μ to 2000 μ, but a size of about 1 μ to 100 μ is preferable.

The shape of the granular material is not particularly limited, and as long as it is finely porous, any shape such as spherical, flat, or amorphous can be used.

Examples of commercially available fine porous powdery particles include the following products.

* Product name: Zeolum (material: aluminum silicate, manufacturer: Toyo Soda Co., Ltd.), * Product name: zeolite (material: aluminum silicate, manufacturer: Nippon Builders Co., Ltd.), * Product name: radiolite (material: diatomaceous earth) * Product Name: Silica # 6-B (Material: Diatomaceous earth, Manufacturer:
Chuo Silica Co., Ltd. * Product name: Gottball (Material: Silica anhydride, Manufacturer:
Suzuki Yushi Kogyo Co., Ltd.) * Product name: Chitosan ball (material: Chitosan, manufacturer: Fuji Boseki Co., Ltd.) * Product name: polyethylene porous (material: polyethylene,
Manufacturer: Spacey Chemical Co., Ltd.).

The inclusion of the functional treating agent in the above-mentioned porous powdery particles may be carried out as follows.

The porous powder and granules and the functional treatment agent are mixed in a desired ratio and sufficiently stirred, and left as it is for several hours to make the permeation of the functional treatment agent uniform and the inside of the fine pores of the porous powder and granules. The functional treating agent is impregnated into or adsorbed on. 70-80 ° C as required
It is also possible to quickly heat the functional treating agent to permeate the functional treatment agent into the inside of the porous powdery particles.

Alternatively, the porous powder and granules, the functional treatment agent and an appropriate liquid (eg, water, solvent, etc.) are mixed, and the fine pores of the porous powder and granules are impregnated with the functional treatment agent and liquid inside or Adsorb. In this case, thereafter, the excess liquid may be removed by spray drying.

When a functional treatment agent having a relatively high viscosity is to be included, the porous powdery granules and the functional treatment agent are mixed, or a liquid is further added to the mixture, and the mixture is placed in a container. When the pressure is once reduced and then returned to atmospheric pressure, the functional treatment agent penetrates well into the inside of the porous powder or granular material. That is, when the pressure is reduced, the air inside the fine pores of the porous granular material comes out due to the pressure difference between the inside and the outside of the porous granular material. Then, when the pressure is returned to the atmospheric pressure, the functional treatment agent is pushed into the airless micropores by the atmospheric pressure.

The microcapsules containing the functional treatment agent according to the present invention have the functional treatment agent as a core substance, and the core substance is surrounded by fine capsules.

As the material for the fine capsules, gelatin, arabic gum, pectin, sodium alginate, CMC, polystyrene, polyurethane, methylol urea, methylol melamine, polyamide, calcium silicate and the like can be used.

In order to produce microcapsules using the functional treating agent as a core substance, a known appropriate method may be adopted depending on the functional treating agent.

As a method for producing the microcapsules, for example, the following method is available.

By the interfacial polymerization method (for example, nylon or polyurethane is used as the capsule material).

By insolubilization reaction (for example, alginic acid, pectic acid, and CMC Na in which Ca is used).

By a phase separation method (eg, gelatin or arabic rubber is used as a capsule material, and a capsule is formed by coacervation with these materials).

By the interfacial precipitation method (protruding after removing the solvent, such as adding water to urethane DMF). By spray drying method.

Comparing the above-mentioned porous powdery granules containing the functional treating agent with those containing the functional treating agent as microcapsules, the following characteristics are obtained.

As for the morphology, the porous granular material is an open capsule and the microcapsule is a closed capsule.

Therefore, the porous powder and granules cannot seal the functional treatment agent, but the microcapsules can completely seal.

Regarding the bleeding effect of the functional treating agent in both cases, the bleeding effect of the functional treating agent is large for the porous powder and granules, and the functional treating agent comes out when the microcapsules are broken (Note that the capsule wall of the microcapsule appears. If you thin
Bleed without breaking depending on the functional treatment agent).

In addition, the porous powder and granules are suitable for encapsulating the functional treatment agent which is a liquid, and the microcapsules are suitable for encapsulating the powdery functional treatment agent. In any case, it is possible to include liquid or powder,
Take the trouble.

As described above, since the porous powdery granules are open capsules, the encapsulated functional treatment agent can be released more easily than microcapsules. Therefore, according to the present invention, the functional treating agent is a substance that is particularly liable to volatilize or bleed, and the functional treating agent is volatilized or volatilized by only encapsulating the functional treating agent in the porous granular material as described above. When bleeding easily occurs, a porous powder or granules containing a functional treatment agent is used as a core substance, and the core powder is microencapsulated. This makes it difficult for the functional treatment agent inside the micropores to be released, and extends the life of the desired function.

According to the present invention, the porous powder particles or microcapsules containing the functional treating agent prepared as described above are attached to the skeleton surface of the foam using a binder.

Examples of the binder include synthetic resin emulsion, synthetic resin solution, and the like, and polyurethane aqueous dispersion, NB
R latex, acrylic ester emulsion, polybutene emulsion, etc. may be used.

Porous particles or microcapsules are mixed in the binder and coated on the skeleton surface of the foam (by an appropriate method such as dipping, coating or spraying).

Alternatively, a porous powder or microcapsules containing the functional treating agent prepared as described above is mixed into the foam raw material to form a foam. In this way, a foam having a porous powder or microcapsules inside the skeleton of the foam can be manufactured.

Further, in each of the above-mentioned methods, when the foam has two or more functionalities, the treating agents having different functions are encapsulated in different porous powders or microcapsules, respectively, and these different functions are included. You may mix and use the porous powdery granules or microcapsules which encapsulate the functional treatment agent.
Alternatively, after pre-mixing treatment agents having different functions,
This may be used by encapsulating it in a porous powder or microcapsule.

Furthermore, according to the present invention, instead of encapsulating the functional treatment agent in the porous powder or microcapsules, cyclodextrin, which is also referred to as molecular capsule, is used to enclose the functional treatment agent, The clathrate compound of the treating agent may be used in the same manner as the above-mentioned powdery or granular material.

The cyclodextrin used in the present invention may be α-cyclodextrin, β-cyclodextrin, γ-cyclodextrin, a cyclodextrin derivative or a mixture thereof, and may be a powdered one, or Starch degradation product containing cyclodextrin (for example, manufactured by Nippon Shokubai Co., Ltd .:
Celldex CH-20, Celldex CH-30) may be used.

Further, instead of using the starch hydrolyzate containing cyclodextrin as it is, it is possible to use reduced cyclodextrin starch syrup which is a mixture of reduced starch syrup and cyclodextrin obtained by almost completely reducing the reducing end groups of malto-oligosaccharide starch syrup. Good.

The reduced starch syrup is obtained by hydrogenating a mixture of maltooligosaccharides containing glucose, maltose and the like at high pressure in the presence of a nickel catalyst to hydrogenate the reducing end groups of the saccharides to become a sugar alcohol and obtain reduced starch syrup.

Cyclodextrin may be mixed with this reduced starch syrup to give reduced cyclodextrin starch syrup. Alternatively, reduced cyclodextrin starch syrup may be prepared by hydrogenating a starch decomposition product containing cyclodextrin.

To include a functional treatment agent with cyclodextrin,
For example, a saturated aqueous solution method or a kneading method may be used.

That is, in the saturated aqueous solution method, a clathrate compound is obtained by adding a fixed amount of the functional treating agent to a saturated or supersaturated aqueous solution of cyclodextrin and stirring the mixture at a temperature of 70 ° C. or lower for several tens of minutes to several hours.

In the kneading method, water or warm water is added to cyclodextrin to form a slurry, and then a necessary amount of the functional treatment agent is added at a temperature of 70 ° C or less, and the mixture is well mixed with a kneader for several tens of minutes to several hours. As a result, a paste-like material containing the clathrate compound is obtained. In this kneading method, when powdered cyclodextrin is used, warm water is added to cyclodextrin (about 0.1 to 6 times the weight of cyclodextrin)
To form a paste or suspension. On the other hand, in the case of using starch syrup containing cyclodextrin or starch syrup containing commercially available cyclodextrin,
Since it itself contains 25 to 40% to 70 to 80% of water, approximately double amount of water may be added or used as it is.

When the functional treating agent to be used is a powder, it may be dissolved in a suitable solvent capable of dissolving the drug, for example, methanol, ethanol, hot water or the like, prior to inclusion. For example, the drug and the solvent are mixed at a ratio of 1: 1 (weight ratio) with stirring at a temperature of about 50 to 70 ° C.

Further, the ratio of the functional processing agent that is a guest and the cyclodextrin that is the host is such that the functional processing agent can be included as completely as possible. For example, it is preferable that the molar ratio of the guest substance to cyclodextrin is about 1: 1 or that the molar ratio of cyclodextrin is larger.

A powdery clathrate compound is obtained by washing a paste-like material containing the clathrate compound produced by the saturated aqueous solution method or the kneading method described above with water and drying by spray drying, ventilation drying or the like.

The paste-like or powder-like clathrate compound thus obtained may be adhered to the surface of the foam skeleton together with the binder, or the clathrate compound may be mixed into the foaming raw material to form a foam.

[Example 1] Zeolum (product of Toyo Hyodoso Co., Ltd.) made of aluminum silicate was used as the fine porous particles, and Neugen P (product of Daiichi Kogyo Seiyaku Co., Ltd.) was used as the nonionic detergent, and both of them were used as 1 Stir-mix at a ratio of 1: 1 at room temperature
After allowing to stand at night, Neugen P was uniformly permeated into the micropores of Zeolum.

20 parts by weight of Zeolum containing Neugen P, 20 parts by weight of urethane elastomer Superflex 150 (a product of Dai-ichi Kogyo Seiyaku Co., Ltd.), and 60 parts by weight of water were mixed and stirred to obtain a polyurethane foam. A sheet of HZ foam (manufactured by Bridgestone Corporation) is dipped, squeezed to 60% and dried at 80 ° C, and then at 130 ° C for 5 hours.
Heat treatment was performed for a minute.

Then, it was die-cut into a circular puff and used for applying a cosmetic foundation.

When the applicator was used and kneaded with a 0.1% aqueous solution of a nonionic surfactant at 35 ° C, it was possible to easily remove stains that could not be removed in the past, and there was no stain after washing.

[Example 2] Silica # 6-B made of diatomaceous earth as fine porous particles
(Central Silica Co., Ltd. product), Sanmor BK-90 (Nichika Chemical Co., Ltd. product) as a non-ionic detergent, Nicepol PR-86 (SR agent, Nika Chemical Co., Ltd. product) as a water absorbing agent ), These three are 1: 0.5: 0.5
The mixture was mixed and stirred at a ratio of 1 and left at 180 ° C. for 1 hour to enclose the cleaning agent and the water-absorbing agent in the fine porous particles, and then n-hexane was further added to form a dispersion liquid.
% Polylactic acid Dichloromethane and n-hexane were completely removed, and polylactic acid was extruded to wrap the fine porous granules into microcapsules.

30 parts by weight of this, and 25 parts by weight of Elastron C-52 (a product of Dai-ichi Kogyo Seiyaku Co., Ltd.), which is a heat-reactive aqueous urethane resin, and 32 of catalysts (a product of Dai-ichi Kogyo Seiyaku Co., Ltd.) 3
By weight, 42 parts by weight of water were mixed and stirred, and the NBR foam sheet was immersed in this liquid. And 6 NBR foam sheets
After squeezing to 0% and drying at 80 ° C, heat treatment was performed at 130 ° C for 5 minutes.

Then, it was formed into a circular puff and used for application by a cosmetic foundation.

After use, it was washed by rubbing with a 0.1% nonionic surfactant solution at 35 ° C, and it was possible to completely remove the stains of the cosmetics that could not be removed in the past.

[Example 3] 1% of CMC was added to wet silicone DM-67 (product of Nika Kagaku Kogyo Co., Ltd.), which is a hydrophilic silicone, to give god balls (product of Suzuki Yushi Kogyo Co., Ltd.), which are fine porous particles. The one having an inclusion amount of 50% was manufactured by the method of standing at room temperature overnight as described in Example 1.

20 parts by weight of this, 30 parts by weight of Elastron F-29 (product of Daiichi Kogyo Seiyaku Co., Ltd.), which is a heat-reactive water-soluble urethane resin, and 3 parts by weight of Catalyst 32 (product of Daiichi Kogyo Seiyaku Co., Ltd.), water 47 parts by weight are mixed and stirred, and NB is added to this liquid.
The R foam sheet was dipped, then squeezed to 60% and dried at 80 ° C. After that, heat treatment was performed at 130 ° C. for 5 minutes, and a cosmetic applicator having excellent water absorption could be obtained.

Example 4 Zeolite (aluminum silicate, which is a fine porous particle,
NK Guard FG-503 (Fusso-based water and oil repellent, Nika Chemical Industry Co., Ltd. product), which is a water and oil repellent, is mixed and stirred at 50 ° C for 2 hours to obtain the water and oil repellent. 50
% Finely-enclosed fine porous particles were produced. With 20 parts by weight of this, Super Flex 150 (urethane elastomer,
(Daiichi Kogyo Seiyaku Co., Ltd. product) 30 parts by weight and 50 parts by weight of water are mixed and stirred, and HZ foam (Bridgestone Co., Ltd. product), which is a polyurethane foam, is immersed in this liquid, squeezed to 60%, and dried at 80 ° C. After that, heat treatment at 130 ℃ for 5 minutes,
It was possible to obtain water and oil repellency with excellent washing resistance.

[Example 5] Polypropylene glycol: 100.00 parts by weight, tolylene diisocyanate: 39.00 parts by weight, water: 0.15 parts by weight to prepare a prepolymer at a maximum temperature of 120 ° C, and then blended in the prepolymer as follows. Then, it was discharged and foamed using a high-speed stirrer to obtain a cosmetic puff with excellent anti-mold property.

Prepolymer: 100.00 parts by weight, silicone: 0.50 parts by weight, N-methylmorpholine: 1.00 parts by weight, triethylamine: 0.30 parts by weight, water: 2.25 parts by weight, antifungal agent-containing god ball: 1.00 parts by weight.

A god ball containing a mildew-proofing agent is a mixture of micro-porous anhydrous silicic acid granules (product of Suzuki Yushi Kogyo Co., Ltd.) and a fungicide, methyl paraoxybenzoate, at a ratio of 1: 0.6. Leave for 2 hours, and vacuum degree -10mmHg
It was used for 20 minutes under reduced pressure.

[Example 6] Antage BHT (heat-resistant aging agent, product of Kawaguchi Chemical Industry Co., Ltd.) and antigen (oxidation aging agent, product of Sumitomo Chemical Industry Co., Ltd.) were mixed at a ratio of 1: 1 and dissolved in toluene to give Zeolum ( Microporous aluminum silicate granules, a product of Toyo Soda Co., Ltd.) were mixed and stirred, and the mixture was allowed to stand for 6 hours to allow Zeolum to include 60% of a heat-resistant aging agent and an oxidation aging agent.

10 parts by weight of this internal granules were mixed with 30 parts by weight of Superflex 200 (urethane elastomer, a product of Dai-ichi Kogyo Seiyaku Co., Ltd.) and 60 parts by weight of water, and the NBR foam sheet was dipped in a liquid that was stirred and squeezed to 60%. While being dried at 80 ° C, heat treatment was performed at 120 ° C for 5 minutes to obtain a cosmetic applicator having excellent anti-aging property.

[Example 7] NBR latex [NIPOL LX-531, manufactured by Zeon Corporation]: 100.00 parts by weight, sulfur (50%): 1.50 parts by weight, zinc diethyldithiocarbamate: 0.50 parts by weight, PUA (20%) 0.60 parts by weight , Sodium stearate (50%): 0.10 parts by weight, zinc white (30%): 10.00 parts by weight, triethylamine: 0.30 parts by weight, sodium fluorosilicate: 10.00 parts by weight, disinfectant-encapsulated particles: 1.00 parts by weight continuously Using a foaming device, after pouring into a mold and gelling, steaming is performed at 102 ° C for 1 hour for vulcanization, water cooling, centrifugal dehydration, drying at 80 ° C, cutting and sterilization inside. A cosmetic puff having the agent was obtained.

Zeolum (microporous aluminum silicate, a product of Toyo Soda Co., Ltd.) is used as the microporous granules, and benzalkonium chloride is used as the bactericide, and zeorum and benzalkonium chloride are used at room temperature as 1 Zeolum containing 20% of benzalkonium chloride, which was produced by mixing and leaving at night, was used.

[Example 8] Silica # 6-B made of diatomaceous earth as fine porous particles
(Product of Chuo Silica Co., Ltd.), silica # 6-B: 3
An aqueous solution consisting of 0.0 parts by weight, polyvinyl alcohol maleic acid monoester (decontaminating agent): 3.0 parts by weight, and water: 55.0 parts by weight is heated at 40 ° C. for 10 minutes, sprayed at 130 ° C., dried, and PVA maleic acid. It was a powdery granule containing a monoester adsorbed therein.

Next, Superflex 200 (urethane elastomer, a product of Dai-ichi Kogyo Seiyaku Co., Ltd.): 100.0 parts by weight, PVA maleic acid monoester encapsulated powder granules: 10.0 parts by weight, ammonium oleate: 8.0 parts by weight, Boncoat V (acrylic type) Emulsion, product of Dainippon Ink and Chemicals, Inc .: 1.0 part by weight, Sumitex M-3 (crosslinking agent, product of Sumitomo Chemical Co., Ltd.): 1.5 parts by weight, Sumitex Accelerator (crosslinking catalyst, Sumitomo Chemical Co., Ltd.) Product): 0.3 parts by weight of a foaming undiluted solution was foamed four times with an oaks mixer, and the foaming liquid discharged was applied at a rate of 1.2 kg / m ² to uneven embossed release paper, dried, and then dried at 130 ° C. It was heated for 15 minutes to prepare a 1 mm thick polyurethane sheet. This polyurethane sheet was laminated on a 6 mm thick polyurethane foam sheet HZ sheet (manufactured by Bridgestone Corporation) to prepare a sheet for a cosmetic applicator, which was punched and molded to obtain a cosmetic applicator.

This makeup applicator was extremely excellent in falling off of the cosmetic during washing.

[Example 9] Chitosan (decontaminating agent, product of Shin Nippon Kagaku Co., Ltd.): 7.0 parts by weight, acetic acid (90): 70.0 parts by weight, silica # 6-B (fine porous particles, Chuo Silica Co., Ltd.): 30.0 An aqueous solution consisting of 10 parts by weight of water and 110.0 parts by weight of water was heated at 40 ° C. for 10 minutes, sprayed at 130 ° C., and dried to give a chitosan-adsorbed encapsulated powder granule.

Next, Superflex 200 (urethane elastomer, a product of Dai-ichi Kogyo Seiyaku Co., Ltd.): 100.0 parts by weight, the chitosan-encapsulated powder granules: 10.0 parts by weight, ammonium oleate: 8.0 parts by weight, Boncoat V (acrylic emulsion, Dainippon Nippon) Ink Chemical Co., Ltd. product): 1.0 part by weight, Sumitex M-3 (crosslinking agent, Sumitomo Chemical Co., Ltd. product): 1.5 parts by weight, Sumitex Accelerator (crosslinking catalyst, Sumitomo Chemical Co., Ltd. product): 0.3 While foaming the foaming undiluted solution consisting of 4 parts by weight with an oaks mixer, the discharged foaming liquid at a rate of 100 g / m ² is a 6 mm thick polyurethane foam HZ sheet (Bridgestone Corporation product). After applying and drying, it was heated at 130 ° C. for 15 minutes to obtain a sheet for a cosmetic applicator. This sheet was punched and formed into a makeup applicator.

This makeup applicator was extremely excellent in falling off of the cosmetic during washing.

〔The invention's effect〕

According to the present invention, since the powder or granules containing the functional treatment agent is attached to the surface of the skeleton of the foam or is inside the skeleton of the foam, the functionality contained in the powder or granules is high. The treatment agent is gradually released (for example, gradually exuding from the inside like the oiles bearing), and its function can be exerted for a long period of time.

Further, according to the present invention, since the functional treatment agent is encapsulated in the powder or granular material, even when repeated rubbing and washing the cosmetic applicator,
Even in the case of powder particles attached to the surface of the foam skeleton, the functional treatment agent inside the powder particles is not washed off. Therefore, the functionality of the foam is durable.

Furthermore, according to the method of the present invention, since the functional treating agent is encapsulated in the porous powdery particles or microcapsules, the functional treating agent does not directly affect the production of the foam or the processing of the foam. Therefore, it is possible to use a functional treating agent which has been difficult to be directly attached to the skeleton surface of the foam or mixed in the foaming raw material by the conventional technique.

According to the present invention, various functional treatment agents, which have been difficult to mix with each other in the past, can be mixed without directly affecting each other by including them in the porous powdery particles or microcapsules. . Therefore, more than one desired functionality can be imparted to the foam.

In addition, when the clathrate compound in which the functional treating agent is clathrated with cyclodextrin is also used, the same action as described above is exhibited.

Claims (16)

[Claims] 1. A cosmetic applicator, wherein the applicator base material is made of a foam, and a powder or granule containing a functional treatment agent adheres to the skeleton surface of the foam. 2. A cosmetic applicator characterized in that a base material of the applicator is made of foam, and a granular material containing a functional treatment agent is contained inside the skeleton of the foam. 3. The cosmetic applicator according to claim 1 or 2, wherein the powdery particles are porous powdery particles. 4. The cosmetic applicator according to claim 1, wherein the powder and granules are microcapsules. 5. The cosmetic applicator according to claim 1 or 2, wherein the powder or granules are obtained by microcapsulating a porous powder or granules containing a functional treatment agent. 6. A cosmetic applicator, wherein the applicator base material is made of foam, and an inclusion compound in which a functional treating agent is included with cyclodextrin is adhered to the skeleton surface of the foam. . 7. A cosmetic applicator, wherein the applicator base material is made of foam, and an inclusion compound in which a functional treating agent is included with cyclodextrin is contained in the skeleton of the foam. 8. The functional treating agent is antifouling, detergency, detergency,
At least one of the functions of permeability, flexibility, smoothness, water absorption, water retention, oil absorption, water repellency, oil repellency, bactericidal property, mildew resistance, anti-aging property, light resistance and deodorant property. The cosmetic applicator according to any one of claims 1 to 7, which is a drug that the cosmetic applicator has. 9. A porous powder or granular material is impregnated with a functional treating agent,
A method for producing a cosmetic applicator, which comprises coating the surface of a skeleton of a foam with a porous powder or granules containing the functional treating agent together with a binder. 10. A porous powdery or granular material is impregnated with a functional treatment agent, the powdery or granular material containing the functional treatment agent is mixed into a foam material, and then the mixture is subjected to a foaming treatment to form a foamed body. A method for producing a cosmetic applicator, which comprises forming the same. 11. A functional treatment agent is microencapsulated,
A method for producing a cosmetic applicator, which comprises coating the skeleton surface of a foam with microcapsules containing the functional treatment agent together with a binder. 12. A functional treatment agent is microencapsulated,
A method for producing a cosmetic applicator, comprising mixing microcapsules encapsulating the functional treatment agent with a foam raw material, and then subjecting the mixture to a foaming treatment to form a foam. 13. A processing agent having different functions is encapsulated in separate powders and granules containing these different functional processing agents and mixed.
13. The method for manufacturing a cosmetic applicator according to any one of 1 to 12. 14. A cosmetic applicator according to any one of claims 9 to 12, characterized in that treatment agents having different functions are mixed in advance and then encapsulated in a powder or granular material. Method. 15. A cosmetic applicator characterized in that a functional treating agent is clathrated with cyclodextrin, and the clathrate compound clathrating the functional treating agent is coated on the skeleton surface of a foam together with a binder. Method. 16. A functional treating agent is clathrated with cyclodextrin, an clathrate compound clathrating the functional treating agent is mixed into a foam raw material, and the mixture is foamed to form a foam. A method for manufacturing a cosmetic applicator, which is characterized by the above.